Hoisting-hook.



L. E. LOZIER.

HOISTING HOOK.

APPLICATION FILED FEB- lll 191-5- Patented July 31, 1917;

OFFICE.

LEWIS E. LOZIER, OF NEW YORK, N. Y.

I-IOISTING-I-IOOK.

To all whom it may concern:

Be it known that I, LEWIS E. Loznnz, a citizen of the United States ofAmerica, and a resident of New York city, New York, have inventedcertain new and useful Improvements in Hoisting-Hooks, of which thefollowing is a specification.

Broadly speaking, my invention relates to hooks and more particularly tothat class known as hoisting hooks. The object of the invention hereindisclosed is to provide a hoisting hook that will not become disengagedfrom the eye, swivel, or bail of eX- cavating buckets, tongs. shacklesor any other mechanism that is associated with a hook of the characterherein described when used for various purposes connected with theraising and lowering of structural material.

It is well recognized that there is more or less danger in thedisengagement from the hook of heavy loads when used in constructionwork, particularly in the construction of caissons and coffer-dams andexcavations, as well as in the moving of steel girders and the like foruse in the erection of steel framework.

In this branch of engineering, it is necessary to properly support thewalls and struts with braces to assist in withstanding the pressurethereon, such braces generally extending laterally and diagonally fromwall to wall or from support to support and upon lowering a bucket orconstructing material into an excavation or coffer-dam where supportsare more or less necessary, there is always danger of the hoisting hooksbecoming disengaged from the bucket or material by the latter coming incontact with, or coming to rest upon such supports or braces, therebyrelieving the weight of the load from the hook, permitting the same todisengage itself, owing to its weight, from the material-carryingmechanism. Upon this disengagement, unless the bucket is substantiallysupported from its bottom, it immediately turns and falls to the bottomof the excavation scattering its load with great danger to the workmentherein.

Further details of my invention will be more specifically pointed out inthe accompanying specification and drawings forming a part of thisapplication, in which corresponding parts are designated by corre*sponding characters of reference.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed February 11, 1915. Serial No. 7,616.

Figure 1 is a side elevation of my invention showing an adjustablesleeve/in closed posltlon.

Fig.2 is a perspective view of the sleeve. Fig. 3 is an enlarged view,partly in section, showing the locking mechanism carried by the sleeve.

My invention comprises a shank portion 1,'for1ned with a flat internalface 2, and tapering intoa thin outer edge 3, the shank being rounded atits lower end into a hook portion 4, and an upstanding ear 5, whichterminates in a fiat beveled end indicated at 6, the mass of materialbeing so proportioned that the upper end of the shank is of substantialthickness and gradually in creases toward the base of the hook to resistthe tensile strain upon the hook which 1s greatest at this point.

Formed integrally with the upper end of the shank l and projectingoutwardly and downwardly therefrom is the leg 7 comprising thehorizontal portion 8 and the depending portion 9, such last named,portion terminating in a fiat beveled end 10, the face of which isparallel to the face of the beveled end 6 of the upstanding ear 5. Bypreference the upstanding ear 5 and the depending portion 9 of the legshould be of the same thickness and in alinement with each other.

Substantially at the junction of the leg 7 and the upper end of theshank 1 is an enlargement 11 having formed therein an eye 12 to whichthe cable or shackle may be attached; however, I do not wish to limitmyself to such construction, as it may be advisable to form a swivelconnection or the like in the hook.

Carried by the leg 7 and adapted to contact with the ear 5 is a sleevecomprising two halves 14 and 15 pivoted together as at 16, and having aninternal diameter slightly larger than the diameter of the lug 7, andthereby to permit a sliding movement thereon. The two halves of thesleeves are adapted to unite by means of bolts 13 or the like after thesleeve has been placed in position around the depending leg 7 Formed onthe outer half of the sleeve are lugs or projections 17, pivotallycarried between which is the spring-pressed locking pawl 18, one end ofwhich. projects in wardly as at 19 through an opening 20 in r 7 formedinto ahead for depression.

Formed in the depending leg 9 are suit able recesses 21, 22, adapted toreceive the mwardlyprojecting nose 19 of the springpressed pawlpivotally carried by the sleeve.

These recesses are so positioned that upon upward or downward movementof the sleeve to either open or close the opening in the hook the nose19 of the pawl will enter the recesses thereby locking the sleeve ineither of the two positions as shown in full and dotted lines in Fig. 1.V

In the closed position, as shown in Fig. 3, the lower end of the sleeveengages the upper end of the ear 5, which is of substan tially the samediameter as the leg 7, thereby rigidly closing the opening in the hookand preventing the disengagement: of the link from the hook when thesame is inserted in the opening between the ends 10 5 and 6.

Having thus described my invention what I claim is, V V

A hoisting hook of the; character described comprising a shank, a hookport on terminating in anupstanding ear, a leg por- V i LEWIS E. LOZIERLWitnesses JOHN P. BROWN, ALBERT J. RICE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

